This project is a simple Arduino countdown timer that uses a knob to set the time and buttons to adjust the countdown. It also includes a buzzer and LED lights for feedback. I have made this project ...
To change the countdown time, press the UP & DOWN buttons together. With the UP or DOWN buttons put the time you want in minutes and press START/STOP which now works as SET. Now change the seconds and ...
If you really want to spice up a New Year’s Eve party, you don’t want to rely on some boring old TV announcer or phone to tell you the time. Over on Soldering Station, they show you how to build your ...